DeVilbiss 905909 DV1 Limited Edition Durbz Gun. The DV1 Basecoat Kustom Special Edition Gun Kit - 905909. DEVILBISS 905909. DV1 Basecoat Kustom Design: Reflect Perfection. This Limited-Edition gun features a "Kustom" design etched into the DV1's distinctive matte black body.